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A Comparison of UMTS and LTE for Vehicular Safety Communication At Intersections

Mangel, T. 1; Kosch, T.; Hartenstein, H. 1
1 Karlsruher Institut für Technologie (KIT)

Vehicular safety communication promises to reduce accidents by assistance systems such as cross-traffic assistance. The information exchange is mostly foreseen to be handled via Dedicated Short Range Communication (DSRC). At intersections, DSRC reception is likely to be problematic due to Non-Line-Of-Sight reception conditions. Alternatively, the required information exchange could also be handled via cellular systems. While cellular systems provide potentially better coverage, they impose other performance constraints. This paper analyzes the suitability of UMTS and LTE for cross-traffic assistance as a worst case application in terms of load and latency demands. It investigates capacity and latency characteristics and discusses influence factors on performance as well as operational aspects. The focus is on the random access performance of the uplink channel. While cellular systems might have some advantages over DSRC, the study shows that UMTS will likely suffer from capacity limitations while LTE could perform reasonably well.

DOI: 10.1109/VNC.2010.5698244
Zitationen: 49
Zitationen: 41
Zugehörige Institution(en) am KIT Institut für Telematik (TM)
Steinbuch Centre for Computing (SCC)
Universität Karlsruhe (TH) – Zentrale Einrichtungen (Zentrale Einrichtungen)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2010
Sprache Englisch
Identifikator ISBN: 978-142449525-2
ISSN: 2157-9857
KITopen-ID: 1000021689
Erschienen in 2010 IEEE Vehicular Networking Conference, VNC 2010; Jersey City, NJ; United States; 13 December 2010 through 15 December 2010;
Verlag Institute of Electrical and Electronics Engineers (IEEE)
Seiten 293-300
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